Warm Weather Shipping FAQ



Cool Shield thermal mailers are designed to keep temperatures consistent during transit. These mailers are to be used for mailing or packing meltable and perishable food via 1-2 day service. (Please see notes below for additional shipping information.) Thermal mailers may be used with or without a cool pack inside; although, we always recommend cool packs.

Click here to add thermal mailers to your order.

ICE-BRIX® is a specially formulated leakproof, long lasting, gel refrigerant that is made with non-toxic ingredients They are sealed in a heavy-duty plastic pouch and help keep meltable products at a constant and desirable temperature and are reusable.

Click here to add ice packs to your order.



Cool Shield Thermal Envelopes

As a general rule you will need one (1) thermal mailer for each of the following:

  • 1 XXL item (greater than 2.5lbs)
  • 2 XL item (1-1.5lbs)
  • 3-4 large items (12-16oz)
  • 4-6 regular items (7-11oz)
  • 6-10 small items (up to 6oz)
Ice Packs

 As a general rule you will need one (1) ice pack for each of the following:

  • NOTE: Chocolate items may required additional ice packs
  • 2 large items (8-16oz)
  • 3-4 regular items (up to 7oz)
  • For items larger than 1lbs (16oz) we recommend 2 ice packs per item.


It is highly recommended that you purchase an expedited shipping option in addition to thermal packaging to increase the likelihood that your order will arrive unmelted. Neither the ice packs nor thermal envelopes are designed to last the 4-5 days that standard shipping may take to arrive. In most cases and especially during warm weather months the ice packs will last approximately two days and will not last past 3 days when packed with thermal envelopes. 


If you have questions on how many thermal mailers or ice packs you think you might need please feel free to reach out to Kevin at kevin@fiveanddimesweets.com.


  • Thermal envelopes are not the outer shipping packaging. Your items will be placed inside the thermal envelope along with any ice packs purchased, thermal envelope will be sealed and then placed in an outer cardboard shipping box.
  • Please note that due to numerous variables we do not guarantee against heat related damage to your order. Ice packs and thermal envelopes are meant to be an additional tool to help your order "beat the odds" but is not guaranteed.
  • If you purchase UPS 2nd day, Overnight, or Next Day service along with ice packs and thermal envelopes and your order still arrives melted please contact us and we will work with you on a resolution.
For more details please see our shipping policies page. (Opens in a new tab)